67 Best Startups in Seattle to Watch in 2025

The Definitive Seedtable Ranking of Startups in Seattle

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 975 start-ups with an aggregate funding of $9.1b. The average funding per company in this subset is $136.5m.

Last update to the database: Feb 18, 2025. See changelog.

See all results for this search

Track over 71,000 companies

Discover
Fast-growing Global startups

Seedtable uses technology and people to track over 71,000 companies to help you find the right ones to partner with.

Pricing + Sign up

9

Funding Rounds

$454.1m

Money raised

Mythical Games is a Los Angeles-based video game development company developing games for playable non-fungible tokens to identify game characters that players can own and offers players a secondary market.

Key people:

5

Funding Rounds

$72.2m

Money raised

Arzeda is a biotechnology and software company designing custom microorganisms for industrial applications through computational enzyme design, protein optimization, and metabolic engineering.

Key people:

1

Funding Rounds

$50.0k

Money raised

Pembient uses advances in biotechnology to fabricate horn and other wildlife products to combat the threat to endangered species.

5

Funding Rounds

$45.8m

Money raised

Boundless is a Seattle-based company offering immigrants tools, information, and personalized support to facilitate their immigration journey.

Location:

Key people:

7

Funding Rounds

$109.7m

Money raised

Esper provides a DevOps platform for Android-based devices. The platform features cloud management tools for device deployment, app development, and monitoring.

5

Funding Rounds

$58.2m

Money raised

Shelf Engine is a Seattle-based software company and developer of an automated prediction ordering platform for food retailers, intended to reduce food waste.

Location:

Key people:

6

Funding Rounds

$356.3m

Money raised

Insilico Medicine is a drug discovery, artificial intelligence company that looks to treat cancer and age related diseases

Location:

Key people:

3

Funding Rounds

$128.6m

Money raised

Temporal offers an open-source runtime system platform that enables a variety of applications and services.

4

Funding Rounds

$146.0m

Money raised

SirionLabs provides a contract lifecycle management (CLM) platform for enterprises.

Key people:

7

Funding Rounds

$194.0m

Money raised

Rec Room is a Seattle-based augmented and virtual reality software company.

Location:

Key people:

6

Funding Rounds

$99.3m

Money raised

LevelTen Energy provides a clean energy procurement platform for midsize businesses and enterprises.

Location:

Key people:

7

Funding Rounds

$119.2m

Money raised

Seeq is a company that offers an application that processes data analytics.

Location:

Key people:

4

Funding Rounds

$30.4m

Money raised

Moz is a company developing and providing inbound marketing analytics software.

10

Funding Rounds

$253.5m

Money raised

Porch is a home services platform that helps home and property owners maintain their homes, by connecting them with professionals.

Location:

Key people:

4

Funding Rounds

$269.4m

Money raised

Stoke Space is a company manufacturing space vehicle components and performing scientific and technological services associated with the space industry.

8

Funding Rounds

$138.5m

Money raised

Impinj wirelessly connects billions of everyday things to applications, delivering real-time information to businesses, and enabling the Internet of Things.

6

Funding Rounds

$137.6m

Money raised

ExtraHop Networks is a Seattle, Washington-based cybersecurity technology company.

Location:

Key people:

4

Funding Rounds

$38.1m

Money raised

Uplevel is a software company that provides a machine learning-based engineering effectiveness platform designed to assess employee performance and generate actionable insights.

6

Funding Rounds

$23.7m

Money raised

Symbl is an API platform for businesses looking to deploy conversational intelligence.

Location:

Key people:

8

Funding Rounds

$488.0m

Money raised

Outreach is a sales engagement platform that uses artificial intelligence (AI) for predictive analytics as it relates to sales.

2

Funding Rounds

$5.0m

Money raised

Avalanche Energy Designs is an American start-up company designing, testing, and building micro-fusion reactors.

Location:

Key people:

9

Funding Rounds

$24.2m

Money raised

Seattle Food Tech is a food manufacturing technology and production company producing plant-based meats. They make plant-based food and plant-based chicken nuggets.

Key people:

3

Funding Rounds

$22.3m

Money raised

Hyperproof is a cloud-based compliance operations software.

4

Funding Rounds

$5.1m

Money raised

Pulse Labs is a Seattle-based development company offering tools and services to help companies develop voice, mobile, and automotive experiences.

Location:

Key people:

5

Funding Rounds

$42.5m

Money raised

Textio is a writing-enhancement service powered by big data.

Key people:

9

Funding Rounds

$434.1m

Money raised

SingleStore is a San Francisco-based database software and analytics company offering a platform to help companies operationalize their data.

Location:

Key people:

8

Funding Rounds

$644.9m

Money raised

Highspot provides a sales enablement platform that increases the success of sales teams across many industries.

Industries:

Location:

Key people:

10

Funding Rounds

$28.5m

Money raised

Membrion is a Seattle-based clean technology company and developer of flexible ceramic ion exchange membranes capable of being used in wastewater cleaning and in energy storage solutions.

Location:

Key people:

2

Funding Rounds

$27.7m

Money raised

One More Game is a Seattle-based startup that specializes in the development of online video games.

Key people:

2

Funding Rounds

$78.0m

Money raised

Trupanion is a Seattle-based provider of pet insurance for cats and dogs in the United States, Canada, Europe, Australia, and Puerto Rico.

4

Funding Rounds

$21.0m

Money raised

Taqtile is a Seattle-based software company building augmented and mixed reality solutions for industrial processes, complex task learning, and data visualization.

Key people:

4

Funding Rounds

$2.5m

Money raised

Worksphere is a Seattle-based workplace management platform to help businesses create safe and flexible workplaces.

5

Funding Rounds

$24.7m

Money raised

A-Alpha Bio is a startup that has built a platform technology and aims to speed up the development of new drugs.

Location:

Key people:

2

Funding Rounds

$6.3m

Money raised

CLIPr is a Kirkland, Washington-based video analysis and management company using AI and machine learning for searching and identifying key moments.

Key people:

4

Funding Rounds

$2.2m

Money raised

Scope 5 is a Seattle-based software company offering sustainability reporting and collating services to help companies achieve greater sustainability in their operations and offer companies reporting on sustainability and related efforts where necessary.

Location:

Key people:

3

Funding Rounds

$115.6m

Money raised

Swiftly is a developer of a digital platform to help brands and retailers build loyalty and reach more shoppers.

Key people:

5

Funding Rounds

$155.0m

Money raised

Wyze is a Seattle-based company developing smart home products and wireless cameras.

8

Funding Rounds

$113.2m

Money raised

Glowforge offers 3D laser printers based on laser cutting and engraving technology that cut, engrave, and shape designs from various materials.

Location:

Key people:

3

Funding Rounds

$5.1m

Money raised

Rainway is a Seattle-based developer of real-time, low-latency tools for streaming, intended for developers and organizations to develop interactive streaming.

Location:

Key people:

5

Funding Rounds

$1.9m

Money raised

Rival IQ is a Seattle-based social media analytics and competitive benchmarking company.

Location:

Key people:

1

Funding Rounds

$5.0m

Money raised

YourBase is a Seattle-based software company developing software testing tools for development teams.

Key people:

7

Funding Rounds

$135.6m

Money raised

Tasso is a Seattle-based manufacturer and supplier of blood-based diagnostic tools.

5

Funding Rounds

$53.2m

Money raised

Skilljar is a Seattle-based cloud-based learning management system to help business increase customer and partner training programs.

Location:

Key people:

1

Funding Rounds

$465.0k

Money raised

InsightStudios is a startup studio founded in 2021 by Dave Linhardt.

Key people:

3

Funding Rounds

$35.9m

Money raised

SoundCommerce is a Seattle-based operations data platform developer offering businesses and brands data, business intelligence, and decision support tools.

Industries:

Location:

Key people:

18

Funding Rounds

$1.5b

Money raised

Tanium is a company providing security and systems management solution for businesses.

Key people:

6

Funding Rounds

$149.0m

Money raised

Shape Security is a Mountain View, California-based company. It was acquired by F5 Networks in 2019.

Key people:

4

Funding Rounds

$11.8m

Money raised

Legalpad is an information technology and services company that assists start-ups in getting work visas for their employees.

Location:

Key people:

3

Funding Rounds

$16.5m

Money raised

Evernym is a software company that develops an open source sovereign identity block chain.

7

Funding Rounds

$27.3m

Money raised

Vita Inclinata Technologies is a company developing safety systems for helicopters and other aerospace platforms.

Key people:

5

Funding Rounds

$187.0m

Money raised

Amperity is a Seattle, Washington-based company that offers a customer data platform (CDP) for enterprises.

Key people:

3

Funding Rounds

$19.7m

Money raised

Moderne is a company developing code automation for software development.

Location:

Key people:

7

Funding Rounds

$120.0m

Money raised

Lumen Bioscience is a biotechnology founded on April 1, 2017, operating out of Seattle, Washington, making an industrial molecular production platform using the blue-green algae Spirulina capable of producing valuable proteins and other molecules.

Location:

Key people:

4

Funding Rounds

$10.4m

Money raised

Indemnis UAV Recovery Systems is an Anchorage, Alaska-based company developing safety solutions to the commercial UAV community.

7

Funding Rounds

$24.0m

Money raised

Headset is a tech company providing an IT solution for the cannabis industry.

Key people:

5

Funding Rounds

$15.6m

Money raised

NextStep is an information technology company providing training and job placement for workers through a mobile application platform.

6

Funding Rounds

$1.3b

Money raised

Relativity Space is a company that develops the process of building and flying rockets.

1

Funding Rounds

$2.4m

Money raised

Bloom API is a healthcare company focused on communication practices.

3

Funding Rounds

$81.0m

Money raised

Edge Delta is a Seattle-based developer of an observability automation platform capable of making sense of complex data sets and reducing index volumes.

Location:

Key people:

2

Funding Rounds

$1.9m

Money raised

Steth IO is a digital health startup company producing a smartphone integrated stethoscope to visualize and hear heart and lung sounds as well as artificial intelligence software for improved characterization.

Key people:

4

Funding Rounds

$7.1m

Money raised

Oisin develops anti-aging treatments that target and remove senescent cells, a type of damaged cell that is unable to divide, accumulates during aging and contribute to age-related diseases.

Location:

Key people:

2

Funding Rounds

$5.5m

Money raised

Groopit is a Seattle-based developer of a collaboration platform intended to give users data analysis through mobile phones and multi-group implementation.

Industries:

Location:

Key people:

4

Funding Rounds

$131.9m

Money raised

OctoML provides an automated deployment machine learning software platform, designed to optimize and speed up the performance of AI solutions at the network edge.

Location:

Key people:

7

Funding Rounds

$332.8m

Money raised

Zap Energy is developing compact fusion power that doesn't require magnets or lasers.

1

Funding Rounds

Insight Data Science is a Palo Alto-based education startup providing post-doctoral training programs in the big data industry.

1

Funding Rounds

$17.5m

Money raised

Stacklok is a Seattle-based software developing offering tools to help developers and open-source software communities keep their software secure and choose safe dependencies.

Location:

Key people:

6

Funding Rounds

$17.4m

Money raised

Apptentive is a customer feedback solution that measures shifts in sentiment from customer experience to win back consumers and activate fans. The Apptentive solution helps enterprise brands including Starbucks, Dunkin Donuts, Jetblue, and eBay. Apptentive captures actionable emotions and feedback from the 90 percent of consumer voices typically missed, and quickly turns that feedback into action.

Location:

Key people:

Sign up to access our full database

Enter your email and get access to 71,000 + technology companies you can partner with.

Join 29000+ founders, operators, and investors.